20130121111330 has 16 divisors (see below), whose sum is σ = 36235246060800. Its totient is φ = 8051819986672.

The previous prime is 20130121111327. The next prime is 20130121111333. The reversal of 20130121111330 is 3311112103102.

It is an interprime number because it is at equal distance from previous prime (20130121111327) and next prime (20130121111333).

It is a junction number, because it is equal to n+sod(n) for n = 20130121111298 and 20130121111307.

It is not an unprimeable number, because it can be changed into a prime (20130121111333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28186930 + ... + 28892269.

It is an arithmetic number, because the mean of its divisors is an integer number (2264702878800).

Almost surely, 2^{20130121111330} is an apocalyptic number.

20130121111330 is a deficient number, since it is larger than the sum of its proper divisors (16105124949470).

20130121111330 is a wasteful number, since it uses less digits than its factorization.

20130121111330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57114473.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 20130121111330 its reverse (3311112103102), we get a palindrome (23441233214432).

The spelling of 20130121111330 in words is "twenty trillion, one hundred thirty billion, one hundred twenty-one million, one hundred eleven thousand, three hundred thirty".